I have about 40 hours in rented Tomahawks and I own a 150L. I flew both during my training before deciding to purchase the 150. In my opinion, the T'hawk is not a bad aircraft at all and it has several advantages over the 150. The other posts are correct that the T'hawk has more cockpit room and is more comfortable. I'm 6'2" and I definitely noticed that the T'hawk has more leg room, more head room and is easier to enter/exit. Another thing, the added visibility of all that glass and the low-wing design is a big plus on that base turn to final. I can't ever remember overshooting the runway center line on a turn to final in the T'hawk. It is easier to fuel and has cowl openings on both sides, which allows for a more detailed and complete pre-flight inspection of the engine compartment. Two other advantages: it has an electric fuel pump which gave me some additional comfort as a backup, and it has an electric stall indicator/horn, which was easy to test during the preflight.
That being said, the 150 is a much easier plane to fly, land and handle. The 150 feels alot more stable and is easier to land in almost all conditions. I think that is because the T'hawk has that T-tail design, which moves the stabilizer out of the propeller slipstream (seems to make low-speed handling a little more dicey). My decision as to which to buy came down to three factors: handling characteristics, availability of parts, and resale. I've been very happy with the decision to purchase the 150 and would make the same decision today that I made before.
Just thinking ... it would be interesting to see and fly the T'hawk with a conventional empennage. Hmmmmmm, I wonder how difficult it would be to .......
